Senator Baldwin may refer to:
Members of the United States Senate Abraham Baldwin (1754–1807), U.S. Senator from Georgia from 1799 to 1807 Henry P. Baldwin (1814–1892), U.S. Senator from the state of Michigan Raymond E. Baldwin (1893–1986), U.S. Senator from Connecticut Roger Sherman Baldwin (1793–1863), U.S. Senator from Connecticut from 1847 to 1851 Tammy Baldwin (born 1962), U.S. Senator from Wisconsin since 2013
United States state senate members Abraham Dudley Baldwin (1788–1862), Connecticut State Senate Florence Eugene Baldwin (1825–1886), Minnesota State Senate Frederick W. Baldwin (Vermont politician) (1848–1923), Vermont State Senate George Baldwin (Wisconsin politician) (1830–1907), Wisconsin State Senate Henry Perrine Baldwin (1842–1911), Republic of Hawaii State Senate and Territory of Hawaii State Senate Howard S. Baldwin (1934–2008), Arizona State Senate John R. Baldwin (1854–1897), Massachusetts State Senate John Baldwin (Missouri politician) (1843–1934), Missouri State Senate Joseph C. Baldwin (1897–1957), New York State Senate Percival G. Baldwin (1880–1936), Illinois State Senate Richard J. Baldwin (1853–1944), Pennsylvania State Senate Stephen Baldwin (politician) (born 1982), West Virginia State Senate Sumner Baldwin (1833–1903), New York State Senate